"The SolarKindle cover allows you to read all the Al Gore and Bill McKibben titles you can download in the greenest manner imaginable--no trees ground into pulp for the pages, no coal burned in power plants to charge up your Kindle's battery. In fact, the solar cover comes with a guarantee of three months of unplugged Kindle use under "normal sunlight environment"--I'm guessing that environment doesn't include Seattle in winter.
But, if you've fully charged your cover before venturing to the great Northwest, you will be able to use the built-in 800 lux LED reading lamp for up to 50 hours without having to tap your Kindle's main battery."
Read more:
http://www.cnet.com/8301-33378_1-573...#ixzz1ixA7Hk3n